A particular adsorption process has the follo | vedclass

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(D) The characteristics given suggest that this is physical adsorption (physisorption).Physical adsorption is characterized by weak van der Waals forc

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Energy of activation is low.

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(D) The characteristics given suggest that this is physical adsorption (physisorption).Physical adsorption is characterized by weak van der Waals forces,reversibility,and the formation of multimolecular layers.It is an exothermic process that typically decreases with an increase in temperature.The enthalpy of adsorption is low (usually $20-40 \ kJ \ mol^{-1}$).Since it involves weak forces and no chemical bond formation,the energy of activation required is very low.

$A$ particular adsorption process has the following characteristics: $(i)$ It arises due to van der Waals forces and $(ii)$ it is reversible. Identify the correct statement that describes the above adsorption process.

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